4 Checking the FRITZ!Box's call list

Check whether there any incoming calls (blue or red handset) that display the caller ID.

If caller ID is displayed, then the FRITZ!Box detects the numbers of the callers. The telephone does not display the numbers because it does not process the numbers being transmitted by the callers according to the general specifications. In this case, the telephone may display caller ID when it is connected directly to your line, but not when it is connected to your FRITZ!Box.

Note:CLIP can be used with many cordless telephones, for example with all FRITZ!Fon models and many telephones from the Siemens Gigaset series. However, AVM cannot guarantee that CLIP will function with telephones from other manufacturers.

If no caller ID is displayed, either your Internet telephony provider did not enable CLIP, or the callers do not transmit their caller ID.